6 Little Known Ways To Make The Most Out Of Super Absorbent Polymer

A novel antibiotic super-absorbent polymer was synthesized from cassava starch,acrylic acid,and capsaicin by graft copolymerization in aqueous solution using ammonium persulfate and sodium bisulfate as initiator and N,N'-methylene biacrylamide as cross-linking agent.The effects of reaction conditions on water absorption of the product were investigated.The results showed that the product had good water absorption under the following conditions:adding extraction of capsaicin,reaction temperature 70 ℃,reaction time 2.5 h,neutralization degree of acrylic acid 85%,amount of initiator and cross-linking agent 0.6% and 0.04% respectively. Using humic acid extracted from Sinkiang Hami brown coal as raw material,and acrylic acid and acrylamide as monomer,PSA-AM polymer was synthesized by the method of solution copolymerization.Based on PSA-AM,a new super absorbent polymer was synthesized through adding humic acid and fly ash.The new polymer had well capacity of retaining and adsorbing water,and could promote plant growth,and improve soil physi-chemical properties.Meantime,its cost was lower relatively.Thus,the new polymer had a good economic and use value. Although the excessive use of SAP (8 g) increased the aphid population, the current experiment showed the use of 4 and 6 g of super absorbents could minimize the irrigation stress, decrease the pest population and improve yield of the plants by retaining the moisture in drought conditions.

So, after application of SAP, the water use efficiency (WUE) was obviously improved with a result of high fruit quality, which was an effective method to improve WUE for the soil with high gravel. 2018. dirty chat sites of seed yield, its component and nitrogen use efficiency of sorghum in response to nitrogen and Nitroxin fertilizers. China represented the biggest market in the district, trailed by Japan, South Korea, and India in the year 2018. Though, Europe is relied upon to rise as the quickest developing locale regarding a piece of the pie. The total import volume was 140,600 tons, down 14.38% on a year-on-year basis, and the average price fell 5.84% over the previous year. METHODS: Current research was conducted with using a split-plot arrangement based randomized complete block design with three replications in research field of Islamic Azad University of Kaleybar, Iran in crop year 2017. Main plots included different irrigation regime at three level (D1: after 60mm, D2: 90mm and D3: 120mm evaporation pan class A) and different amounts of super absorbent polymer (S1Zero or control:, 75 kg.ha-1: S2 and 150 kg.ha-1: S3 super absorbent polymer; SAP) belonged to sub plots. The highest and lowest yield of dried flower (116.83 and 75.98 kg/ha), capitol diameter (0.544 and 0.497 cm) and receptacle height (0.676 and 0.568 cm) were obtained from irrigation after 50 and 200 mm evaporation from pan class A, respectively.

The irrigation level of 210 mm evaporation had the greatest impact on the activity of antioxidant enzymes and osmotic regulators. In all traits, a significant decrease was observed with increase in stress level. The experiment was laid out in randomized complete design with five level (0.0, 0.5, 1, 2 and 3%) super absorbent polymer and three levels of water irrigation including 4 day (control), 8 and 12 day from germination until two month and each of these levels was repeated ten replication at Khorasan Razavi Natural Resources and Agricultural Research Center. The experiment was carried out in a split plot based on randomized complete block design with three replications. Three years ago at the age of 16, Melithafa added her voice to the call for urgent climate action when she joined an initiative called Project 90 by 2030 which aims to reduce South Africa’s carbon emissions by 90% by the end of the decade. Three irrigation levels after 6 (I1), 10 (I2) and 14 (I3) days and five amounts of super absorbent polymer (0, 75, 150, 225, 300 kg/ha) were set as main and sub factors, respectively. RESULT: Analysis of variance showed the effects of super absorbent polymer, drought stress and interaction between super absorbent and drought stress in the probability levels of 1 and 5 percent were significant for most traits.

Nevertheless, although using super absorbent significantly increased physiological traits but it decreased the activity of antioxidant enzymes. The authors researched soil water, transpiration, fruit yield and quality after applying SAP to apricot trees and quantitatively analyzed water using characteristics, and the research provided a theoretical basis for highly efficient and reasonable water conservation. The structure of this crosslinked polymer gel was analysed using powder x-ray diffraction method. Because of heavy losses for water in soil with high gravel, the application of super absorbent polymer(SAP) provided an important channel for the water-saving research on agricultural irrigation. Drought stress was applied at fourteen-leave-stage of sunflower and polymer was added at the same stage to soil in depth of root development. On the other hand, polymer application reduced the harmful effects of drought stress whereas application of 300 kg/ha polymer in long irrigation intervals a reasonable seed yield obtained. OBJECTIVES: Evaluation the impact of different levels of super absorbent polymer (SAP) on reducing the effects of drought stress on some physiological traits and activity of some antioxidant enzymes in wheat crop. CONCLUSION: The highest increase in most examined traits obtained when 75 kg.ha-1 of super absorbent was used. 20 cm respectively. Application of super absorbent could accelerate or delay the change of main water uptake layer in different periods, but could not change the trend; The super absorbent polymer could significantly(P 0.05) increase the proportion of fine root(diameter 0.5 mm), promoting root growth and improving the root water uptake performance; Treatments which super absorbent polymer were buried in shallow depth could promote the root growth more significantly, SAP and SAP15 were better than SAP35; The super absorbent polymer effect on proportion of maize fine root(diameter 0.5 mm) was consistent with the law of root main water uptake layer change, which was obtained from stable isotopes analysis.